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Car Forum / Mercedes-Benz Cars / August 2007

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Outside Temperature Display

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Bill Leavy - 30 Jul 2007 19:54 GMT
Hi Folks -

The outside temperature display that appears on the dash with the
odometer and time displays has gone out.  Nothing.

Is this a complicated (expensive) repair, or should I just do without
it.

Thanks.

--  Bill
Wan-ning Tan - 30 Jul 2007 20:35 GMT
Assuming this is your 1998 E320 (based on your previous posting 3
minutes ago).

Does the odometer still show?  If yes, the outside temp sensor is bad.
The sensor is somewhere near the front bumper.  Older cars have it
behind the license plate.  Look for a metal tip (1/4" diameter) followed
by thick cable.

If the odometer does not show either, the display is bad.  I am not sure
about your model but I suspect the whole cluster needs to be replaced.

> Hi Folks -
>
[quoted text clipped - 7 lines]
>
> --  Bill
Bill Leavy - 30 Jul 2007 23:34 GMT
Hi -

Thanks for the quick reply.

Yes it is a 1998 E320.

The odometer and the clock do still show, so if I'm understanding you
correctly, that should mean that the sensor is shot.

I looked underneath, and saw something that looked like an insulated
wire/cable with a lot of little metal bristles coming out.  Looks
almost like a cut wire cable.  Is this it?

Seems like it would be an easy repair then.

--  Bill

>Assuming this is your 1998 E320 (based on your previous posting 3
>minutes ago).
[quoted text clipped - 18 lines]
>>
>> --  Bill
Tiger - 31 Jul 2007 00:12 GMT
Ahh... in your case, it is a $800 bill... My mom's 2001 E320 had the same
problem... losing digits... same for the clock. They swap out the entiire
cluster.
Bill Leavy - 01 Aug 2007 06:41 GMT
Hi Tiger -

I'm hoping the cluster is not the problem since the odometer and the
clock seem fine.

--  Bill

>Ahh... in your case, it is a $800 bill... My mom's 2001 E320 had the same
>problem... losing digits... same for the clock. They swap out the entiire
>cluster.
Wan-ning Tan - 31 Jul 2007 04:21 GMT
> an insulated wire/cable with a lot of little metal bristles?
Where do you find this?  How does the cable look like?  Is it free
hanging?  How many insulated wires are inside this cable?  There should
be two.

In the older cars (80s to early 90s), the cable looks and feels like the
TV cable (slightly thinner) and the metal tip is about 1/4" in diameter
and one inch long with a mounting base at the latter half.  The cable
routes along the front bumper, behind the left headlight, then along the
left fender top and going thru the firewall.  If what you find is indeed
the "sensor", I am afraid it has been cut, either by accident or someone
else.

You only need the sensor.  The cluster itself sounds fine (lucky you :-)
otherwise it will be very expensive, like Tiger said.

> Hi -
>
[quoted text clipped - 35 lines]
>>>
>>>--  Bill
Bill Leavy - 01 Aug 2007 06:44 GMT
Hi Wan -

Maybe I'm looking at the wrong thing, I don't see any insulated wires,
almost looks like a metal brush.

You may be right about the sensor being cut, I'll ask my mechanic
about it.

--  Bill

> > an insulated wire/cable with a lot of little metal bristles?
>Where do you find this?  How does the cable look like?  Is it free
[quoted text clipped - 51 lines]
>>>>
>>>>--  Bill
Tiger - 31 Jul 2007 00:11 GMT
What car do you have? Alot of time it is that display unit that is bad...
buy good used unit on ebay.
Bill Leavy - 01 Aug 2007 06:45 GMT
Hi Tiger -

It's a 1998 E320.

Still hoping it is the sensor.

--  Bill

>What car do you have? Alot of time it is that display unit that is bad...
>buy good used unit on ebay.
Karl - 01 Aug 2007 07:11 GMT
#17 is the sensor, #11 is the harness:
http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=210065%5F45P&M=112%2E941&GA=722%2E60
7&CT=F&cat=45P&SID=54&SGR=106&SGN=06


> Hi Tiger -
>
[quoted text clipped - 6 lines]
> >What car do you have? Alot of time it is that display unit that is bad...
> >buy good used unit on ebay.
Rolf Dybwad - 02 Aug 2007 08:25 GMT
Re. outside temp:
The display unit itself is very often the cause of this problem, and not
the sensor.
The display unit is repairable and not to expensive to fix.

yours RD

> Hi Folks -
>
[quoted text clipped - 7 lines]
>
> --  Bill
 
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